Gas holder



Dec. 26, 1939.

F. EINBECK El AL 2,184,795

h GAS HOLDER Filed July 13, 19:57 2 Sheets-Sheet 1 avatar frwcZr-[clfi-rrbeck and OZZa Kay-61:11:10!-

Dec. 26, 1939. ElNBECK ET AL 2,184,795

GAS HOLDER Filed July 13, 1937 2 Sheets-Sheet 2 ell/for Fried/uhEa'naeck a Otto Kerb-mackeratented Dec. 26, 1939 PATENT OFFICE GASHOLDER- Friedrich Einbeck and Otto Korbmacher, Dortmund, Germany,assignors to the firm Aug Klonne, Dortmund, Germany Application July 13,1937, Serial No. 153,456 In Germany August 13, 1936 6 Claims.

The invention relates to gas holders of the kind wherein the gas isexpelled from the con.- tainer by the descent of a piston in thecontainer. The invention is concerned with the construction of the floorof the container, and the piston, and with the manner of supporting thecontainer on the ground.

According to the invention the piston has a concave under face, and thefloor of the container is inwardly curved, with a curvaturecorresponding substantially, at the central part, to that of the pistonface, but much more pronounced at the circumferential part, so that whenthe piston is fully lowered there is at the circumference a gap betweenits face and the floor, adequate to provide a working space into whichworkmen can enter through a manhole. Such entry may for example bedesirable when the lowered piston is to be partly raised by means ofcompressed air and supported in the raised position by means of props.The workmen are able to insert and adjust the props in the course of theraising.

The curved shape of the floor gives it such strength that it can in manycases be made only of sheet metal of moderate thickness. Water ofcondensation fiows to the rim, where it can easily be removed.

The gap between the lowered piston and. the floor, at the circumference,is very small compared with the aggregate capacity of the container, sothat it does not form a dead space of any importance. If desired it maybe filled with liquid, which is let'out when workmen are to enter.

The floor and the wall of the container are preferably joined to anannular foot, and this may rest upon an annular bed sunk in the ground,without any rigid connection between the. foot and the bed, so that ifthe bed becomes tilted through subsidence the container can be wedgedupon the lowered side without interrupting its work. In the absence ofrigid connection between the bed and the ring there is no risk ofstructural damage to the container if through some defect the bed dropsaway at part of the circumference:

Three embodiments of the invention are shown in the accompanyingdrawings, in Figs. 1, 2 and 8 respectively, these being verticalsections showing only the lower part of the container, with the pistontherein.

Referring first to Fig. 1, the containerv I has therein a piston 2 witha concave under surface,

and the floor 4 of the container is inwardly curved, with a curvaturewhich in the main corresponds with that of the piston face but differsconsiderably therefrom at the part near the circumference, where thecurvature of the floor is of much shorter radius than that of the piston5 face. Consequently, when the piston rests on the flooras shown in Fig.1, there is a gap 5, wedge shaped in vertical section, between the rimof the piston and the floor of the container.

The bottom edge of the container wall and the rim of the floor fit intoa channelled ring 6, in which they are made tight, and this ring standsupon an annular bed I. The ring is not rigidly fixed to this bed, but isonly so secured as to prevent lateral displacement by wind pressure. Thecavity under the floor of the container is filled with wet sand 8.

In the embodiment shown in Fig. 2 the floor to of the container is madeof ferroconcrete, with a sheet metal cover 41), and is joined to aferroconcrete ring 6a standing upon the annular bed I.

In Fig. 3, illustrating the third embodiment, the piston 3 is shown infull lines in its lowest position and in broken lines in a raisedposition. The construction is substantially similar to that shown inFig. l, but the piston has legs 9, which when it is'fully lowered reston the ring 6b to which the container wall and the floor are joined.

What we claim as our invention and desire to secure by-Letters Patent ofthe United States is:

1. In a gas holder the combination of a container having a wall and aninwardly curved floor,

a channelled ring into which the bottom edge of said wall and the rim ofsaid floor are joined, and a piston in said container having a concaveunder face, the curvature of said piston face correspondingsubstantially to that of said floor at the central part thereof, butbeing substantially less pronounced at the circumferential part, so thatwhen the piston is fully lowered 4 there is at the circumference a spacefor workmen between said piston and said floor.

2. In a gas holder the combination of a container having a wall and aninwardly curved floor, an annular foot to which said wall and said floorare joined, an annular bed upon which said foot stands, and a piston insaid container having a concave under face, the curvature of said pistonface corresponding substantially to that of said floor at the centralpart thereof, but being substantially less pronounced at thecircumferential part, so that when the piston is fully lowered there isat the circumference a space for workmen between said piston and saidfloor.

3. In a gas holder the combination of a container having a wall and aninwardly curved floor, an annular foot to which said wall and said floorare Joined, an annular bed upon which said foot stands, and a piston insaid container having a concave under face, and having also legs .whichrest on said annular foot when said piston is fully lowered, thecurvature of said piston face corresponding substantially to that ofsaidfloor at the central part thereof, but being substantially lesspronounced at the circum-v ferential part, so that when the piston isfully a space for workmen between said piston and said floor.

5. In a gas holder the combination of a container having a wall and acurved floor. an-annular foot to which said wall and-said floor arejoined, an annular bed upon which'said foot rests, and a piston in saidcontainer having legs which contact the annular foot to support thepiston when. fully lowered said piston having a bottom curved surface ofless curvature than the curvature of the floor so that when the pistonis fully lowered there is a space for workmen between the piston andtheiioor.

6. In a gas holder the combination of a con-- tainer having a wall and acurved floor, a chanwall and the rim of'the floor are joined, and a basefor supporting said ring whereby said container and ring may be-raisedat any point from said base.

FRIEDRICH EINBECK. o'rrp KORBMACHER.

nelled ring. into which the bottom edge of said

